Electronics Forum | Mon Nov 19 17:40:38 EST 2007 | bbarton
No, the thicker plating and need for very high quality drilling and plating is DUE to the higher copper dissolution rate and higher contact time. As to the Sn100C material, their claims seem to confirm a "lower" copper dissolution rate, but so does A
Electronics Forum | Mon Jan 14 06:28:18 EST 2008 | gregoryyork
Hi its normally down to the state of cure of the resist type not the actual type be it matt or gloss. If its not cured correctly it will produce solder balls. Pending where you are you could try our 35-41 or new 35-41-30 flux this will reduce the pro
Electronics Forum | Sun Jun 01 00:58:09 EDT 2008 | robi
Just for INFO Folungwin Printer Win 6 simular to Ekra but with major design improvments, also in the next year a new printer to be released The Smart 3 which is simular to a Dek but with 39 design changes of improvement, both printers are same as be
Electronics Forum | Wed Aug 13 09:11:19 EDT 2008 | rgduval
Shane, We're assuming that the software is similar to our Heller 1800. We're also assuming that the oven has thermocouple ports, and that you have the thermocouples to plug into them. From the screen that displays the zone data, there should be a
Electronics Forum | Thu Nov 13 09:27:21 EST 2008 | cisridn
I have tried covering the vias with thermal tape and that did not work. I like the idea of plugging the via with a temporary solder mask. I will try that the next time I build a fixture which should be tomorrow. This is mainly a problem only becau
Electronics Forum | Fri Nov 14 17:21:17 EST 2008 | cisridn
Plugging the holes with temporary solder mask helped some, but once the solder starts to reflow, the fumes from the flux pushed the solder mask out. What I ended up doing in addition to using the temporary solder mask was covering the areas of pcb w
Electronics Forum | Mon Jun 29 16:53:02 EDT 2009 | Geo
I need some help in setting straight QA which owns our ESD Procedures. 1. Is the limmiting resistor for personel safety or to slow down ESD discharge? Everything I have read indicates it is for personnel safety. 2. Is it an ESD violation to have
Electronics Forum | Wed Jul 01 06:29:59 EDT 2009 | rway
You are correct. The resistors are for personal safety. However, I don't think that bench top or floor mats require a 1MO current-limiting resistor. This would be necessary if a wrist strap was being used. The mats we use do have a 1MO resistor o
Electronics Forum | Thu Jul 02 05:49:37 EDT 2009 | rway
Nuez, I don't really see how it's a problem. If your not using a wrist strap, there's no grounding issue. It will work fine as is, equipment insulated or not. The "conductive" mats have many mega-ohms of resistance as it is. Simply "bypassing" t
Electronics Forum | Sun Jul 05 23:30:01 EDT 2009 | jeffr
A feedback error means that a particular axis did not respond by moving in a normal manner. Check the following:- 1/.. Mechanical binding. (Servo Off, then check axis moves without binding). 2/.. Check encoder plugs of that axis. Note that Philips/Ya
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